Polarization-Modulated Multidirectional Photothermal Actuators

© 2020 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 33(2021), 3 vom: 26. Jan., Seite e2006367
1. Verfasser: Li, Zhiwei (VerfasserIn)
Weitere Verfasser: Ye, Zuyang, Han, Lili, Fan, Qingsong, Wu, Chaolumen, Ding, Deng, Xin, Huolin L, Myung, Nosang Vincent, Yin, Yadong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article magnetic alignment multidirectional robots photothermal actuators plasmonic nanorods templating synthesis
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520 |a Photothermal actuators have attracted increasing attention due to their ability to convert light energy into mechanical deformation and locomotion. This work reports a freestanding, multidirectional photothermal robot that can walk along a predesigned pathway by modulating laser polarization and on-off switching. Magnetic-plasmonic hybrid Fe3 O4 /Ag nanorods are synthesized using an unconventional templating approach. The coupled magnetic and plasmonic anisotropy allows control of the rod orientation, plasmonic excitation, and photothermal conversion by simply applying a magnetic field. Once the rods are fixed with desirable orientations in a bimorph actuator by magnetic-field-assisted lithography, the bending of the actuator can be controlled by switching the laser polarization. A bipedal robot is created by coupling the rod orientation with the alternating actuation of its two legs. Irradiating the robot by a laser with alternating or fixed polarization synergistically results in basic movement (backward and forward) and turning (including left-, right-, and U-turn), respectively. A complex walk along predesigned pathways can be potentially programmed by combining the movement and turning modes of the robots. This strategy provides an alternative driving mechanism for preparing functional soft robots, thus breaking through the limitations in the existing systems in terms of light sources and actuation manners 
650 4 |a Journal Article 
650 4 |a magnetic alignment 
650 4 |a multidirectional robots 
650 4 |a photothermal actuators 
650 4 |a plasmonic nanorods 
650 4 |a templating synthesis 
700 1 |a Ye, Zuyang  |e verfasserin  |4 aut 
700 1 |a Han, Lili  |e verfasserin  |4 aut 
700 1 |a Fan, Qingsong  |e verfasserin  |4 aut 
700 1 |a Wu, Chaolumen  |e verfasserin  |4 aut 
700 1 |a Ding, Deng  |e verfasserin  |4 aut 
700 1 |a Xin, Huolin L  |e verfasserin  |4 aut 
700 1 |a Myung, Nosang Vincent  |e verfasserin  |4 aut 
700 1 |a Yin, Yadong  |e verfasserin  |4 aut 
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773 1 8 |g volume:33  |g year:2021  |g number:3  |g day:26  |g month:01  |g pages:e2006367 
856 4 0 |u http://dx.doi.org/10.1002/adma.202006367  |3 Volltext 
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